Crowther Aluminium Performance Catamaran

Aluminium Performance Catamaran

Don't Miss This Opportunity
"Emma James" is a rare and impressive aluminium performance catamaran, purpose-built for speed, distance, safety, and serious adventure. She is a true go-anywhere blue water vessel -- handles weather and ready to cruise immediately. Just load your provisions and set sail.

Vessel Overview
Model: Crowther 85 MK4 - 52ft Aluminium Daggerboard Catamaran
Designer: Lock Crowther
Builder: MEC, Gold Coast, Australia
Year Built: 2005
Professionally built for performance, comfort, and long-range cruising. "Emma James" has been a beloved home to a sailing family. One of only a few aluminium catamarans purpose-built for full-time liveaboard family cruising.
Specifications & Performance
Length: 16.00m (52 ½ ft waterline)
Beam: 7.4m
Draft: 1.1m loaded
Displacement: 17 tonnes loaded
Hull Construction: 4mm Aluminium Plate (Hull & Decks)
Keel Type: Daggerboards
Engines: 2 x Nanni 50hp Shaft Drive (~2100 hrs)
Propellers: 3-Blade Flexofold Folding Props (New November 2024)
Cruise Speed: 8 knots
Fuel Capacity: 1200L diesel (600L per hull)
Water Capacity: 600L in 2 tanks (300L per hull)
Watermaker: Schenker 60L/hr (New Membranes 2025)

Accommodation
Cabins: 4 x Queen Cabins (mirrored layout) + 2 Single Berths
Bathrooms: 1 Full Bathroom + 1 Portable Toilets
Shower: 1 Full Shower
Laundry: 6kg Front-Loading Washing Machine, Drying Area & Storage

Galley & Interior
Full-size galley in saloon with ocean views
U-shaped stainless-steel prep area and ample cabinetry
Force 10 Gas Oven + 4 Burner Gas Stove + Rangehood
Induction Cooktop
Refrigeration:
190L Upright Fridge (12V/240V)
45L Freezer (12V/240V)
60L Fridge/Freezer under Skipper's Chair
240V/engine heated Hot Water System

Sailing & Rigging
Mast: Allyacht, 21m with 7m Seldon Boom
Sails Inventory:
Fully Battened Mainsail
Screecher
Genoa
Staysail
Spinnaker
New Boombag (2025)
Rigging: All Harken Winches & Deck Gear
New Rigging July 2024:
16mm Dyneema Caps
15mm Dyneema Lowers
15mm Dyneema Bow Sprit Stays
Forestays Replaced (Stainless Steel Wire)

Safety Gear
Jack Lines, flares, e-pirb, 10x PDF1.2x Life bouy rings with light, and v-sheet. 5 x 2.5kg fire extinguishers, and droge.
10 bilge pumps


Navigation & Electronics
Starlink (2025)
Northstar/Navman Autopilot
ICOM VHF
New in 2025 (B&G Suite):
B+G Radar
B+G Zeus Chartplotter
B+G Triton Wind Instruments
B+G VHF Radio + AIS Transceiver

Power & Electrical
2.6kW Solar:
4 x 440W Panels (New Nov 2024)
4 x 175W Tiga Bar Panels
2 x 400W AirX Wind Generators
2 x 60A Alternators
800Ah Lithium House Battery Bank
2 x 55A Gell Starter Batteries
2x 20A DC to DC chargers (Start to house)
Mastervolt Combi 12/2200-100 Inverter

Ground Tackle
Anchor 1: Sarca No. 7 + 70m x 10mm Chain + 50m x 18mm Nylon (Galvanised Apr 2025)
Anchor 2: Sarca No. 6 + 30m x 10mm Chain + 50m x 18mm Nylon
Windlass: Muir HR3500 Electric

Extras
Saltwater Deck Wash
Ample Storage: Dive Gear, Tools, Spares, Toys, Fishing Equipment
2x Sail Locks forward

Recent Maintenance & Upgrades
Slipped & Serviced - April 2025
Daggerboards Extended
Pettit Vivid Antifoul
Propspeed on Flexofold Props
Major Refit - 2024
Sugar Scoops Extended
Aft Roof Extended
Recessed Anodes for performance
New Aft Cockpit Canvas & Boombag
New Flexofold Props
New Cutlass Bearings
New Rigging
Cockpit Refit (2024)
In 2024, the cockpit underwent a major transformation to enhance comfort, usability, and airflow. Key upgrades include:
Installation of a custom skipper's chair
Extended seating area for increased relaxation space
Aft roof extension, offering better sun and rain protection
Addition of a dedicated outdoor dining table -- perfect for morning coffee, alfresco dinners, and entertaining guests
New clears enclosing the aft cockpit, allowing the aft cabins to keep their hatches open even during tropical rain -- a crucial feature for maintaining airflow in warm climates